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Markedly different ascorbate dependencies of the sequential alpha-ketoglutarate dioxygenase reactions catalyzed by an essentially homogeneous thymine 7-hydroxylase from Rhodotorula glutinis.
CONVERSION OF THYMINE TO 5-HYDROXYMETHYLURACIL IN A CELL-FREE SYSTEM.
3 Oxygenases: Dioxygenases
Catalysis of three sequential dioxygenase reactions by thymine 7-hydroxylase.
Ribonucleic acid polymerase of Azotobacter vinelandii, II. Formation of DNA-RNA hybrids with single-stranded DNA as primer.
- R. Warner, H. Samuels, M. T. Abbott, J. Krakow
- Biology, ChemistryProceedings of the National Academy of Sciences…
- 1 April 1963
Methods: Heating curves of absorbancy as a function of temperature were obtained as previously described and 1.5 G-50 Sephadex was used as a pycnometer.
Studies pertaining to the purification and properties of thymine 7-hydroxylase.
Metabolism of pyrimidine deoxyribonucleosides in Neurospora crassa
The experiments in this report involve the following series of reactions which were previously demonstrated with purified enzyme preparations from Neurospora crassa: thymidine a yields thymine…
Thymine 7-hydroxylase and pyrimidine deoxyribonucleoside 2' -hydroxylase activities in Rhodotorula glutinis.
Regulation of thymidine metabolism in Neurospora crassa
- W. R. Griswold, V. Madrid, P. M. Shaffer, D. C. Tappen, C. S. Pugh, M. T. Abbott
- Chemistry, BiologyJournal of bacteriology
- 1 March 1976
It is suggested that the 2'-hydroxylase has, in addition to the role of salvaging the pyrimidine ring, therole of providing ribose not only for the utilization of the demethylated pyridine but also for other metabolic processes.
Substitution of nucleoside triphosphates for ascorbate in the thymine 7-hydroxylase reaction of Rhodotorula glutinis.
- L. Wondrack, B. J. Warn, M. Saewert, M. T. Abbott
- Biology, ChemistryThe Journal of biological chemistry
- 10 January 1979
Nucleoside di- and triphosphates substituted for ascorbate in the thymine 7-hydroxylase reaction in studies carried out with purified preparations from Rhodotorula glutinis, and the retention of the nucleotide effect upon purification suggest the effect is not mediated through another protein co-purified with the 7- Hydrolysis.